.enable_invoice() when (@enable-invoice = true) {
  //invoice
  .invoice-info {
    line-height: 24px !important;
    color: #444;
    vertical-align: bottom;
    margin-left: 9px;
    margin-right: 9px;
  }
  .invoice-info-label {
    display: inline-block;
    max-width: 100px;
    text-align: right;
    font-size: @font-size-invoice-data;
  }
  .invoice-box .label-large[class*="arrowed"] {
    margin-left: 11px !important;
    max-width: 95%;
  }

}

.enable_invoice();